<template>
		<div id="app">
			<div class="box">
				<div class="v-html" v-html="loading[index]" v-if="isHtml"></div>
				<div class="v-text" v-text="loading[index]" v-else></div>
				<div></div>
			</div>
			<div class="btn">
				<div class="change-btn" @click="changeShow">{{isHtml ? "查看源码" : "查看示例"}}</div>
				<div class="loading-btn">
					<div class="loading-btn-item" @click="index=0">1</div>
					<div class="loading-btn-item" @click="index=1">2</div>
					<div class="loading-btn-item" @click="index=2">3</div>
				</div>
			</div>
		</div>
</template>

<script>
  import { ref } from "vue"
  import "../assets/css/loading.css"
  export default {
    setup() {
      const index = ref(0)
      const loading = [
              `<div class="sk-chase">
                    <div class="sk-chase-dot"></div>
                    <div class="sk-chase-dot"></div>
                    <div class="sk-chase-dot"></div>
                    <div class="sk-chase-dot"></div>
                    <div class="sk-chase-dot"></div>
                    <div class="sk-chase-dot"></div>
                  </div>`,
							`<div class="spinner">
                    <div class="rect1"></div>
                    <div class="rect2"></div>
                    <div class="rect3"></div>
                    <div class="rect4"></div>
                    <div class="rect5"></div>
                  </div>`,
							`<div class="sk-cube-grid">
                    <div class="sk-cube sk-cube1"></div>
                    <div class="sk-cube sk-cube2"></div>
                    <div class="sk-cube sk-cube3"></div>
                    <div class="sk-cube sk-cube4"></div>
                    <div class="sk-cube sk-cube5"></div>
                    <div class="sk-cube sk-cube6"></div>
                    <div class="sk-cube sk-cube7"></div>
                    <div class="sk-cube sk-cube8"></div>
                    <div class="sk-cube sk-cube9"></div>
                  </div>`
      ]
      const isHtml = ref(true)
      const changeShow = () => {
        isHtml.value = !isHtml.value
      }
      return {
        index,
        loading,
        isHtml,
        changeShow,
      }
    },
  }
</script>
<style>
  body {
				margin: 0;
				padding: 0;
			}

			#app {
				width: 100%;
				height: 100vh;
				background: linear-gradient(to right, #7474bf, #348ac7);
				display: flex;
				flex-direction: column;
				justify-content: center;
				align-items: center;
				color: #FFF;
			}

			.box {
				width: 400px;
				height: 350px;
				display: flex;
				justify-content: center;
				align-items: center;
			}

			.box .v-text {
				width: 100%;
				height: 100%;
			}

			.btn {
				width: 200px;
				height: 150px;
				margin-top: 10px;
				display: flex;
				flex-direction: column;
				justify-content: space-between;
				align-items: center;
				user-select: none;
			}

			.btn .loading-btn {
				width: 100%;
				display: flex;
				justify-content: space-between;
			}

			.btn .loading-btn .loading-btn-item {
				width: 35px;
				height: 35px;
				background: rgba(0, 0, 0, 0.2);
				border-radius: 50%;
				text-align: center;
				line-height: 35px;
				cursor: pointer;
			}

			.btn .change-btn {
				width: 100px;
				height: 30px;
				line-height: 30px;
				text-align: center;
				background-color: rgba(0, 0, 0, 0.2);
				cursor: pointer;
				border-radius: 20px;
				font-size: 13px;
				letter-spacing: 2px;
			}
</style>